ActiveRecords - two fks

Hi,

     I have two database tables
     Briefly:
       Projects
          -type
          -designer_id
          -check_designer_id
          - ...
       Designers
          -name
          -...

     I want to create two foreign keys in Projects table and both with
     the same Designer table.

     How should I deal with that problem, I want to use ActiveRecords.
     Is it possible?